I'm not with you on this. As of now, yes posterous seems like another wordpress, but I've found it to offer much more. The CEO used to work for apple & he's never owned a PC. About less than 10 years ago many thought that macs were a joke. Look at the company now. The ipod, itunes, changed the whole industry. Music is bought,published, & listened to differently now thanks to platforms like itunes.

In 5 years touchscreen technology is going to become mainstream. I'm willing to bet most people will own a touchscreen phone & many will start to own devices like ipads. Wordpress is a blogging platform. I see posterous as a dashboard to manage all of my social media accounts , with a blog built into it. I'm willing to be that the CEO's vision is in line with apple & will continue to follow the path of integrating tools that feed into products like iphones, ipads, ect. Do you honestly see wordpress going that route?

Just wait and keep in mind - Hi I'm a mac, this a PC commercials.